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Technology of Electrical Automatic

DEM-4MC Din Rail 3 Phase Energy Meter

DEM-4MC Din Rail 3 Phase Energy Meter

The DEM-4MC three-phase rail-mounted energy meter is an ideal choice for residential billing, room rental billing, and industrial applications. With a width of 4 modules and a default 100mA/333mV CT, it can use external current transformers to extend the current measurement range up to 999A. In addition to basic voltage, current, frequency, and other basic energy measurement functions, the DEM-4MC can optionally measure advanced parameters such as harmonic analysis and voltage and current imbalance detection.

The DEM-4MC features CATIII-300V voltage rating and and withstand voltage of 2.5kV, ensuring safety and reliability in complex electrical environments. The DEM-4MC provides real-time voltage and current readings through an LCD screen and supports RS485-RTU and pulse output ports. It can be expanded with multiple DI/DO ports, offering users a comprehensive energy management solution. Compliant with international standards IEC61557 and IEC62053, the DEM-4MC is suitable for the diverse needs of residential, public facility, and industrial scenarios.

The DEM-4MC three-phase rail-mounted energy meter is an ideal choice for residential billing, room rental billing, and industrial applications. With a width of 4 modules and a default 100mA/333mV CT, it can use external current transformers to extend the current measurement range up to 999A. In addition to basic voltage, current, frequency, and other basic energy measurement functions, the DEM-4MC can optionally measure advanced parameters such as harmonic analysis and voltage and current imbalance detection.

The DEM-4MC features CATIII-300V voltage rating and and withstand voltage of 2.5kV, ensuring safety and reliability in complex electrical environments. The DEM-4MC provides real-time voltage and current readings through an LCD screen and supports RS485-RTU and pulse output ports. It can be expanded with multiple DI/DO ports, offering users a comprehensive energy management solution. Compliant with international standards IEC61557 and IEC62053, the DEM-4MC is suitable for the diverse needs of residential, public facility, and industrial scenarios.

Feature

Wide range of Application
The DEM-4MC din rail 3 phase energy meter supports current rating up to 999A with the 100mA/333mV external CT connection. Besides, multi-DI/DO port configuration is available. Thus, it is widely used for 1 phase 2 wires, 3 phase 3 wires, 3 phase 4 wires systems in residential billing, room rental billing and industrial applications.
wide application DEM-4MC din rail energy meter with CT
high accuracy of DEM-4MC din rail kwh meter
High Accuracy Measurement for basic and& optional advanced electrical parameters
The DEM-4MC three phase din rail energy meter, a new design monitoring solution, can measure and monitor active energy (kWh), reactive energy (kVarh), active power (W), reactive power (Var), apparent power (VA), voltage (V), current (A), power factor, demand, and frequency. Besides, you also can configurate the advanced parameter measurements such as harmonics, power quality. In general, accuracy class 0.5 per IEC61557 or IEC62053. Accuracy of ± 0.5% for voltage & current, 0.1% for Frequency, 0.01% for PF, 1% for Power, Class 1 for Active energy, Class 2 for reactive energy.
Type of output
Both RS485 ouput and pulse ouput are option for 3 phase kwh meter din rail. Configurate your ouput for import or export energy measurement. Support 1 RS485 ouput, 1 Pulse output, or combination of one RS485 ouput and one one pulse output.
DEM-4MC din rail power meter output type
Easy din rail installation for DEM-4MC din rail power meter
Compact size and easy mounting
The DEM-4MC din rail power meter 3 phase adpots modern compact design, which allows for installation of the energy meter in modular switchgear in accordance with EN 62208 ( energy meter has a width of 4 modules) on 35 mm rail. The size is 78*90*60mm. The small size and din rail installation make you easiy mounting in the on-site.

Application

  • All power parameter measurement and electrical fire monitor and control;
  • Residential electricity billing: residential areas, apartment buildings;
  • Commercial leasing: office buildings, commercial plazas;
  • Public utilities: schools, hospitals, government buildings;
  • Transformers, generators, capacitors and electric motors distributed detection;
  • Medium and low pressure systems;
  • SCADA, EMS, DCS integrators.

Specification

Parameter Value
Auxiliary power 85-265Vac/dc
Voltage measurement Rated 110V, 380V RMS value, Accuracy 0.2%,
Current measurement Rated 5A, optional 1A, CT connection

optional Hall CT,  Rogowski coil connection

Frequency 50/60Hz, Accuracy ±0.01Hz
Display LCD with white backlit
Maximum display value 99,999,999MWh
Energy accuracy Class 0.5, IEC 62053-21
Pulse constant 1 channel, 5000imp/kWh
I/O module 2DO, 2DI optional
Communication RS-485 MODBUS-RTU
Withstand voltage 2.5KV 1min
Insulation Input, output, power supply to Shell >5MΩ
Storage environment -40~70°C
Working environment -25~55°C Altitude ≤2500m,

0~95%RH, non-condensing, non-corrosive gas

Wiring method

Dimension

Front view                                                                                                                          

 

Side view

Download

DEM-4MC-A-User manual-V1.11

DEM-4MC-V-User manual-V1.11

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